http://youtu.be/AVZS22SFLVgGraduate student Alexandra Paxton finds opinionated students, puts them in a room together and tells them to argue about a hot-button issue.
Then she records what happens.
Paxton, who is earning her doctoral degree in cognitive science, studies interpersonal synchrony — the phenomenon of how people in a conversation subconsciously synchronize their movements, such as nodding or gesturing. Specifically, she is seeking to understand what happens to that synchrony when people are at odds.